Formation of uniformly sized liquid droplets using spinning disk under applied electrostatic field

A rotating multinozzle system that utilizes an applied AC potential combined with a DC bias to produce a large number of uniformly sized droplets synchronously with the applied AC frequency is proposed. A three-step experimental investigation is reported. The operational parameters were determined using a stationary single nozzle. Finally, using a rotating multinozzle system with 100 nozzles, a large number of uniform droplets was produced, and the uniformity was checked with a particle analyzer using the immersion sampling method. It was found that the synchronous region of the stationary single nozzle coincided with that of the rotating single nozzle (both nozzles had the same diameter and length). Therefore, one can predict the correct operational parameters for the rotating nozzle system from the results obtained in the stationary nozzle experiment (which are much easier to obtain). Uniformly sized droplets can be produced synchronously with an applied AC frequency using rotating nozzles. The operational parameters for the rotating single and multinozzles are almost the same.<>